Pension Plans - Summary of Weighted Average Assumptions Used to Determine Full Year Pension Costs (Detail)	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Compensation and Retirement Disclosure [Abstract]
Discount rate	4.10%	5.10%	4.30%
Expected long-term rate of return on plan assets	7.40%	7.40%	7.60%
Rate of compensation increase	3.60%	3.60%	3.60%